Pentax E90 vs Sony A7c

Let's look more closely at the Pentax E90 and Sony A7c, former being a Small Sensor Compact while the other is a Advanced Mirrorless by competitors Pentax and Sony. There is a large difference among the sensor resolutions of the E90 (10MP) and A7c (24MP) and the E90 (1/2.3") and A7c (Full frame) use different sensor size.

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The E90 was announced 11 years before the A7c and that is a fairly serious difference as far as camera tech is concerned. Both of the cameras offer different body type with the Pentax E90 being a Compact camera and the Sony A7c being a Rangefinder-style mirrorless camera.

Before we go through a comprehensive comparison, below is a short view of how the E90 matches up against the A7c when considering portability, imaging, features and an overall rating.

Below is a sample of the gallery pictures for Pentax Optio E90 & Sony Alpha A7c. The whole galleries are viewable at Pentax E90 Gallery & Sony A7c Gallery.

For anybody who is aiming to carry your camera regularly, you will want to factor in its weight and proportions. The Pentax E90 has outside measurements of 102mm x 59mm x 25mm (4.0" x 2.3" x 1.0") with a weight of 145 grams (0.32 lbs) and the Sony A7c has measurements of 124mm x 71mm x 60mm (4.9" x 2.8" x 2.4") accompanied by a weight of 509 grams (1.12 lbs).

Look at the Pentax E90 and Sony A7c in our completely new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ based on the lens you are using at that moment. The following is the front view dimension comparison of the E90 compared to the A7c.

Taking into consideration size and weight, the portability score of the E90 and A7c is 94 and 78 respectively.

Oftentimes, its hard to visualize the difference in sensor sizing simply by seeing technical specs. The graphic below will help provide you a greater sense of the sensor measurements in the E90 and A7c.

As you have seen, the 2 cameras enjoy different resolutions and different sensor sizing. The E90 using its smaller sensor is going to make achieving shallower DOF more difficult and the Sony A7c will provide extra detail with its extra 14MP. Greater resolution will make it easier to crop pics far more aggressively. The older E90 will be disadvantaged with regard to sensor tech.